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Finding the Fourth Proportional to 90,133.77, 135,105.31 and 33,949.56

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Solution

The fourth proportional to 90,133.77, 135,105.31 and 33,949.56 is: 50,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,133.77 : 135,105.31 = 33,949.56 : x
  2. Step 2: Convert to fraction form
    90,133.77/135,105.31 = 33,949.56/x
  3. Step 3: Cross multiply
    90,133.77x = 135,105.31 × 33,949.56
  4. Step 4: Simplify right side
    90,133.77x = 4,586,765,658.42
  5. Step 5: Solve for x
    x = 4,586,765,658.42/90,133.77
  6. Step 6: Final answer
    x = 50,888.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.